Finding the Fourth Proportional to 2,459.91, 3,693.56 and 2,116.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.91 : 3,693.56 = 2,116.98 : x
2. Step 2: Convert to fraction form
   2,459.91/3,693.56 = 2,116.98/x
3. Step 3: Cross multiply
   2,459.91x = 3,693.56 × 2,116.98
4. Step 4: Simplify right side
   2,459.91x = 7,819,192.65
5. Step 5: Solve for x
   x = 7,819,192.65/2,459.91
6. Step 6: Final answer
   x = 3,178.65